The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 03, 2012
Filed:
Sep. 09, 2009
Applicants:
Claus Cernoch, Klagenfort, AT;
Adalbert Feltz, Deutschlandsberg, AT;
Inventors:
Claus Cernoch, Klagenfort, AT;
Adalbert Feltz, Deutschlandsberg, AT;
Assignee:
EPCOS AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 18/00 (2006.01); C04B 35/50 (2006.01); H01B 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ceramic material with a negative temperature coefficient of specific resistance has the general formula [{(SE,SE)(M,M)}(CrMn(Me,Me))O]. In this formula, SEand SEare different rare-earth metal cations, Mand Mare selected from Ca, Sr, and Meand Meare redox-stable, trivalent metal cations, wherein the following applies with respect to the parameters: 0<x<1; 0<z<1; 0<y<1−z.